How Traffic Lights Work

The Week in Tech is now a roundtable! Every Friday, Oz and three of the best writers covering Silicon Valley will discuss the latest news, decode emerging trends and debate what actually matters for the future of technology and for us. This week, guests Reed Albergotti (Semafor), ...  Show more

Iran's Shahed drone costs $30,000 to build. The US missile sent to destroy it? Up to $4 million. Pulitzer Prize-winning conflict journalist Ben C. Solomon wants you to do the math. Oz sits down with Ben to break down the economics driving the conflict with Iran, why the Pentagon ...  Show more

What if traffic lights could adjust for the actual flow of traffic happening at any given moment? Learn how smart, networked technology could help drivers (and pedestrians) in this episode of BrainStuff, based on this article: https://science.howstuffworks.com/engineering/civil/s ...  Show more

Traffic lights detect vehicles using a variety of methods. Check out this podcast from HowStuffWorks.com to find out how timers, inductive loops and other detectors keep traffic running smoothly.

The history of traffic signals is way more interesting than you might think. Trust us. 

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The rules vary from state to state, but there are specific guidelines for what services can and can't get a mention on U.S. highway signs. Learn more in this episode of BrainStuff, based on this article: https://auto.howstuffworks.com/tech-transport/who-featured-blue-highway-exit ...  Show more